Relates to a flexible sheet material manufactured from thermoplastic polymers and additives, to provide horizontal, vertical or stepped damp-proof courses in solid or cavity masonry walls. Key factors assessed were behaviour under load; resistance to water, water vapour, and radon; compatibility with other materials; and durability.
Date of sixth issue: 23rd July 2018. Originally certificated on 26th October 1994.
The British Board of Agrément have been providing authoritative and independent information on the performance of building products for over 40 years. The certificates they produce contain data on durability, installation and compliance with Building Regulations.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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